Joseph E. Merryweather, PA-C
- Medicare patients, 2024
- 180
- Part D claims, 2024
- 303
- Hospital affiliations
- 1
- Industry payments
- $700
- Medical groups
- 2
- Practice address
- 25 North Winfield Road, Winfield, IL 60190
- Practice phone
- Call (630) 682-1600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Joseph Merryweather's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Joseph E. Merryweather is a physician assistant in Winfield, Illinois
Joseph Merryweather practices at Northwestern Medicine Central DuPage Hospital in Winfield, Illinois, part of Northwestern Memorial HealthCare.
Joseph Merryweather's NPI, 1144661448, was assigned on July 15, 2013. Joseph Merryweather holds Illinois license 085.004697.
- NPI
- 1144661448NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7315189479
- NPI enumeration date
- July 15, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (630) 682-1600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Joseph E. Merryweather practices at Northwestern Medicine Central DuPage Hospital in Winfield, Illinois
Joseph Merryweather's primary practice is Northwestern Medicine Central DuPage Hospital, at 25 North Winfield Road, Winfield, IL 60190 in Du Page County. The practice phone is (630) 682-1600.
- Northwestern Medicine Central DuPage Hospital25 North Winfield Road, Winfield, IL 60190 · Du Page CountyPhone(630) 682-1600
Source: Dmand AI Affiliation Data
Joseph E. Merryweather is affiliated with 4 sites of care and 2 medical groups
Joseph Merryweather's primary practice is Northwestern Medicine Central DuPage Hospital in Winfield, Illinois, part of Northwestern Memorial HealthCare. The medical group on file is Central DuPage Hospital Emergency Physicians. Dmand AI also links Joseph Merryweather to 1 more breast imaging center, 1 clinical lab, 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Joseph E. Merryweather's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Joseph Merryweather practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northwestern Medicine Central DuPage Hospital | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Northwestern Memorial HealthCare and 6.2K+ hospitals, with verified contacts in the same login.
Joseph E. Merryweather is one of 4,299 physician assistants in Illinois
Physician assistant is Joseph Merryweather's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Joseph Merryweather is licensed in Illinois.
Specialties and state licenses
- Physician assistant, IllinoisPrimary
Physician assistants near Joseph Merryweather
Counts of physician assistants with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Joseph E. Merryweather treated 180 Medicare patients in 2024, average age 72
CMS counts 180 Medicare patients who saw Joseph Merryweather in 2024. The largest group is 65 to 74, with 80 patients. 75% of them have high cholesterol, and 74% have high blood pressure. 12% are also on Medicaid. Their average risk score is 1.72, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Joseph Merryweather's median patient age at 40, with 61% women.
Joseph Merryweather's Medicare patients by age, 2024
Joseph Merryweather's Medicare patients by sex, 2024
- Women9754%
- Men8346%
Chronic conditions among Joseph Merryweather's Medicare patients, 2024
- High cholesterol75%
- High blood pressure74%
- Arthritis50%
- Anxiety36%
- Mood disorders36%
- Diabetes33%
- Chronic kidney disease31%
- Depression31%
Share of Medicare patients with each condition. A patient can have several.
Joseph Merryweather's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 40
Patient panel by sex, all payers
- Women61%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Joseph E. Merryweather wrote 303 Medicare Part D claims in 2024
In 2024, Joseph Merryweather wrote 303 Medicare Part D claims for 207 patients. 98% of them were for generic drugs.
Joseph Merryweather's Part D claims by kind of drug, 2024
- Generic298 claims98%
- Brand-name and other5 claims2%
Drug classes CMS tracks in Joseph Merryweather's Part D claims, 2024
- Opioids24%72 of 303 claims
- Antibiotics24%74 of 303 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Joseph E. Merryweather takes part in Medicare
Joseph Merryweather accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Joseph E. Merryweather received $700 in industry payments in 2025
CMS Open Payments shows 1 general payment to Joseph Merryweather from 1 drug or device company in 2025. Consulting fees make up the largest share, 100% of the total. Baxter Healthcare paid the most, $700.
Companies that paid Joseph Merryweather the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Joseph E. Merryweather's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Joseph E. Merryweather
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Joseph E. Merryweather's NPI number?
Joseph E. Merryweather's NPI number is 1144661448. It was assigned on July 15, 2013, and it is active in the NPI Registry.
What does Joseph E. Merryweather specialize in?
Joseph E. Merryweather is a physician assistant in Winfield, Illinois. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Joseph E. Merryweather practice?
Joseph Merryweather practices at 25 North Winfield Road, Winfield, IL 60190. Joseph Merryweather's primary practice is Northwestern Medicine Central DuPage Hospital in Winfield, Illinois, part of Northwestern Memorial HealthCare. Dmand AI also links Joseph Merryweather to 1 breast imaging center, 1 clinical lab, 1 group practice or clinic and 1 medical group.
What is Joseph E. Merryweather's office phone number?
The practice phone on file for Joseph Merryweather is (630) 682-1600.
What is Joseph E. Merryweather's medical license number?
Joseph Merryweather holds Illinois license 085.004697.
Which hospitals is Joseph E. Merryweather affiliated with?
Joseph Merryweather practices at Northwestern Medicine Central DuPage Hospital in Winfield, Illinois.
What medical group is Joseph E. Merryweather part of?
Joseph Merryweather is linked to Central DuPage Hospital Emergency Physicians. Dmand AI links Joseph Merryweather to 1 more medical group.
Does Joseph E. Merryweather accept Medicare?
Yes. CMS lists Joseph Merryweather as accepting Medicare assignment.
How many Medicare patients does Joseph E. Merryweather see?
CMS counts 180 Medicare patients who saw Joseph Merryweather in 2024, with an average age of 72.
Has Joseph E. Merryweather received payments from drug or device companies?
CMS Open Payments shows $700 in general payments to Joseph Merryweather from 1 company from 2025 to 2025. The largest total came from Baxter Healthcare.
How long has Joseph E. Merryweather been practicing?
Joseph Merryweather graduated from medical school in 2013, 13 years ago.
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